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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Proposed Surface Drainage Points

    Metadata Updated: November 29, 2025

    Surface drainage points are structures that help direct rainwater in the City’s sub-surface pipe drainage system. The informal drainage system makes up nearly one-third of the City of Seattle footprint. This layer displays connected surface drainage points, regardless of ownership, that cannot be found in other layers.  For example, Catch Basins, Junction Boxes, Sandboxes, and Inlets are not included.  The data source is DWW.surface_drainline_pt_pv with the following data query:  SDP_LIFECYCLE_TEXT IN ( 'Connected' , 'Unknown' , 'Temporary' ,'To Be Connected', 'Under Construction', 'Provisionally Connected', 'Proposed', 'Abandoned', 'Abandoned Temporary', 'Removed') AND SDP_FEA_TYPE_TEXT IN ( 'Area Drain;Area Way;Driveway Drain' ,'Cleanout', 'Flow Control MH' , 'Infall' , 'Maintenance Hole' , 'Overflow MH' , 'Other' , 'Rubber Coupler' , 'Reducer' , 'Surface Cleanout' , 'Sedimentation Chamber;Sand Catcher;Sand Trap' , 'Stand Pipe' ,  'Weephole', 'Catch Basin MH', 'Vault', 'Underground Injection Cell; Drilled Drain')This layer does not display when zoomed out beyond 1:2,000.  Labels are based on the attribute SDP_ASSET_ID and only display when zoomed in to 1:1,000 or closer.  Only SPU owned assets will have a label.Refreshed weekly.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date February 28, 2025
    Metadata Updated Date November 29, 2025

    Metadata Source

    Harvested from Seattle JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 28, 2025
    Metadata Updated Date November 29, 2025
    Publisher City of Seattle ArcGIS Online
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=2faa5a80445f41508356ee9e3da57fa4&sublayer=2
    Data First Published 2024-05-22
    Data Last Modified 2025-11-24
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://cos-data.seattle.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 2b6e864c-49bd-4ce8-a301-e41ede462530
    Harvest Source Id f61de7a2-69cf-40a9-a1bc-dd9edb8f3fe5
    Harvest Source Title Seattle JSON
    Homepage URL https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::proposed-surface-drainage-points
    Metadata Type geospatial
    Old Spatial -122.4283,47.4778,-122.2370,47.7646
    Source Datajson Identifier True
    Source Hash fc57fc9915d9c04f767bbc1926985d8a437070d0bc7bff0c196adcbe32d552e0
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.4283, 47.4778, -122.4283, 47.7646, -122.2370, 47.7646, -122.2370, 47.4778, -122.4283, 47.4778}

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